Granted Patent
Utility
US 6,207,822 · App. 09/455,482
Process for the synthesis of azetidinones
Inventors:
Tiruvettipuram K. Thiruvengadam, Xiaoyong Fu, Chou-Hong Tann, Timothy L. McAllister, John S. Chiu, Cesar Colon
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Dec 5, 1999
Inventors
Tiruvettipuram K. Thiruvengadam
Xiaoyong Fu
Chou-Hong Tann
Timothy L. McAllister
John S. Chiu
Cesar Colon
Assignee (at issue)
SCHERING CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.